The Query Builder allows you to construct complex database queries. In the New Query interface, you can perform a single search, or combine query elements with the AND (intersect) operator, or use the NOT to exclude defined terms. Use the drop-down menus to select search parameters, and the + and - buttons to add or remove search components.

You can use the Query Management tab to build more complex combinations of query elements, using OR (union) and NOT (subtract) operators as well as AND, and nested queries.

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